Diagnostic information for administrators:
Generating server: my-exchange-svr.com
user@domain.comserver4519x.domainhosting.com Remote Server returned '550-Please turn on SMTP Authentication in your mail client. 550-my-exchange-svr.com (my-exchange-svr.com) 550-[my-exchange-ip_public]:19855 is not permitted to relay through this server without 550 authentication.'
any suggest?
which part must be changed in our Exchange Svr configuration?
Regards, Noval